gh-146488: hash-pin all action references #2509

Job	Run time
x86_64-unknown-linux-gnu/gcc-free-threading	8m 35s
x86_64-pc-windows-msvc/msvc	9m 30s
aarch64-unknown-linux-gnu/gcc	6m 54s
x86_64-pc-windows-msvc/msvc-free-threading	4m 41s
x86_64-unknown-linux-gnu/gcc	9m 39s
aarch64-apple-darwin/clang	9m 41s
x86_64-apple-darwin/clang	9m 40s
	58m 40s

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